Q5 of 31 Page 96

Give reasons for the following:

Biosphere provides a stable ecosystem.


Biosphere provides a stable ecosystem because it is a life-supporting zone on Earth. It includes plants, animals, and human beings. It is the ecological system of the earth. Without the biosphere life on earth would not exist.


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4 D

Distinguish between the following:

Savannas and Tundra


 5

Give reasons for the following:

Producers are also called autotrophs.


 6 A

Answer the following in a paragraph:

Explain the various components of the ecosystem.


 6

Answer the following in a paragraph:

Write a paragraph on the functions of an ecosystem.